How do I create a simple cooldown?

I have a game and there are two different bullet types that you can use. id like one bullet type to have a cooldown, for instance, when the bullet is fired then it can't be fired again for another 5 seconds. Thanks.

A timer you can program with a few variables and events or if easier for you use fade behavior.

Depends on how your game is set up, but if using fade behavior, I would add it to that bullet and each time it's fired set it to fade out in 5 seconds. Then add a condition in your shot fire event; if bullet opacity 0%. So bullet cannot be fired until it is at opacity of 0%

Obviously you do not destroy this bullet, just move off screen if it hits something. Then when ready to fire set opacity to 100% and fade it out again